This allows us to reduce CODE footprint of SDCC projects
built with --model-huge. Use carefully!
* Added a facility which allows us to enable/disable the
feature from the CPU dir (CC_CONF_NON_BANKED_OPTIMIZATION)
* Added the CC_NON_BANKED keyword to some platform files
(expands to __nonbanked)
* Started using this for some examples
* Adjusted the cc2530 timer-test example to reflect recent changes to clock_delay()
* Sensinode now uses the newer timer-test example copied over from cc2530dk
* Deleted the obsolete clock-test. timer-test is a superset